bellower vs shouter

bellower and shouter both are nouns.

Word	Noun	Adjective	Verb	Adverb
bellower	Yes	No	No	No
shouter	Yes	No	No	No

As nouns, bellower and shouter are synonyms defined as:

bellower and shouter: someone who communicates vocally in a very loud voice

Other synonyms of bellower include bawler, roarer, screamer, screecher, yeller.

bellower (noun)	shouter (noun)
someone who communicates vocally in a very loud voice	someone who communicates vocally in a very loud voice